Building-brick



(No Model.) 2 Sheats-8heet 1 W. H. BUBB. BUILDING BRICK.

No. 576,185. Patented Pebfz, 1897.

/NVENTOH WITNESSES:

(No Model.) 2 Sheets -Sheet 2.

W. H. BUBB.

BUILDING BRICK.

N0 576,185. Patented Feb. Z, 1897.

nrnNr Fries,

BUILDING-BRICK.

SPECIFICATION forming part of Letters Patent No. 576,185, dated February2, 1897.

Application filed February 11,1896. Serial No. 578,904. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM H. BUBB, a citizen of the United States,residing at Brazil, in the county of Clay and State of Indiana, haveinvented certain new and useful Improvements in BuildingBrioks, of whichthe following is a specification.

In the use of hollow building-brick as they have heretofore been madegreat difficulty has been experienced in securing; strong andwater-tight joints, as the surfaces which receive the mortar or cementare narrow and not well fitted to firmly grip and hold it. Variousexpedients have been resorted to to obviate this difficulty, among whichis the forming of flanges within the hollow brick and the inserting oftile-plates in said flanges.

' Such expedients are troublesome and expensive, involving both theexpense of the additional plates and of the additional labor in puttingthem in place when laying the wall.

The object of my invention is to obviate these difficulties and toproduce a brick in the laying of which strong, durable, and water-tightjoints may be made; and it consists in a brick having apeculiarly-formed end, as will be hereinafter more particularlydescribed and claimed.

Referring to the accompanying drawings, which are made a part hereof,and on which similar letters of reference indicate similar parts, Figure1 is a perspective view of a fragment of a wall laid up of my improvedbricks; Fig. 2, a perspective view, on a larger scale, of one of saidbricks separately; Fig. 3, an end elevation of the same; Fig. 4, afragmentary sectional view, 011 a still further enlarged scale, showingthe form and character of the joints made in laying the wall; Fig. 5, aview illustrating the method of producing the end formation of myimproved bricks, and Fig. 6 a detail view showing the operation of thedie on the brick.

Among the advantages of using hollow instead of common bricks arelightness, imperviousness, the equalizing of temperature, economy ofmaterial, and, owing to the increased size, (such bricks, according tomy practice, being usually made with a face about eight by sixteeninches in size,) less labor in laying up the wall, there being muchfewer-bricks to handle in building a given wall.

The bricks themselves lettered A in the drawings (are first formed in ausual or any desired manner) and resemble square tile or flue-lining.Being of an ordinary and wellknownconstruction, except as to the endsthereof, they need no further description, except such as relatesespecially to the process of forming of said ends and the character ofthe ends when formed.

The brick, as they come from the brick-machine before being burned andwhile comparatively soft and pliable, are placed in some convenientmachine (a simple press is shown as an example of such a machine in Fig.5) armed with a suitable die, which is pressed into the end of "thebrick, as best illustrated in Fig. 6, forming the interior lips athereon. This side 13 should haveparallel outside surfaces, so that theeffect is to turn the lips inwardly and not disturb the outer surface ofthe brick, which is left perfectly square and smooth. The form of theendso produced and of the resulting lip is best shown in Fig. 4, wherefragments of the ends of two such brick (about half size) are shown asbrought together with the mortar or cement between them and fillin galso the clefts in the ends of the bricks.

In building a wall of such bricks the end of the brick already laid iscovered with mortar or cement and the next brick forced endwise againstit, thus squeezing the mortar or cement in the crevice or cleft in thelast brick laid and joining the two bricks firmly together. When themortar or cement has setand especially when cement is used-a very strongjoint is made, which unites the bricks firmly together, and which isperfectly watertight. In laying common hollow bricks having the ordinarysquare ends it has been diflicult to make the mortar or cement adhere,and consequently the wall has not ordinarily been impervious todampness. lVith my improved brick the mortar adheres perfectly and thereis no such danger.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is

As a new article of manufacture, a hollow building-brick, having cleftsformed in the In witness whereof I have hereunto set my ends, the outersides whereof are parallel with hand and seal, at Brazil, Indiana, this7th day the surfaces of the brick, and the inner sides of February, A.D. 1896.

inclined inwardly, thus forming inclined lips WILLIAM H. BUBB. [L. s.] 50n the interior of said hollow brick, with Vitnesses:

crevices running aroundthe end thereof, sub- ELMER P. COLLINS,

stantially as shown and described. HARRY I. JOHNSON.

